White space fix only. Translators can ignore.
Sponsored by: iXsystems
This commit is contained in:
Dru Lavigne
parent
b5b3e6fbd3
commit
a699ce7ba5
Notes:
svn2git
2020-12-08 03:00:23 +00:00
svn path=/head/; revision=44187
1 changed files with 111 additions and 107 deletions
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@ -4259,8 +4259,9 @@ Received 264951 bytes in 0.1 seconds</screen>
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<para><acronym>IPv6</acronym> is the new version of the well known
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<acronym>IP</acronym> protocol, also known as
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<acronym>IPv4</acronym>. <acronym>IPv6</acronym> provides several advantages over
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<acronym>IPv4</acronym> as well as many new features:</para>
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<acronym>IPv4</acronym>. <acronym>IPv6</acronym> provides
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several advantages over <acronym>IPv4</acronym> as well as many
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new features:</para>
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<itemizedlist>
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<listitem>
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@ -4274,12 +4275,12 @@ Received 264951 bytes in 0.1 seconds</screen>
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<listitem>
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<para>Routers only store network aggregation addresses in
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their routing tables, thus reducing the average space of a
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routing table to 8192 entries. This addresses the scalability
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issues associated with <acronym>IPv4</acronym>, which required every
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allocated block of <acronym>IPv4</acronym> addresses to be
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exchanged between Internet routers, causing
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their routing tables to become
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too large to allow efficient routing.</para>
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routing table to 8192 entries. This addresses the
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scalability issues associated with <acronym>IPv4</acronym>,
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which required every allocated block of
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<acronym>IPv4</acronym> addresses to be exchanged between
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Internet routers, causing their routing tables to become too
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large to allow efficient routing.</para>
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</listitem>
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</itemizedlist>
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@ -4329,52 +4330,54 @@ Received 264951 bytes in 0.1 seconds</screen>
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<varlistentry>
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<term>Unicast</term>
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<listitem>
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<para>A packet
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sent to a unicast address arrives at the interface
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belonging to the address.</para>
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</listitem>
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</varlistentry>
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<para>A packet sent to a unicast address arrives at the
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interface belonging to the address.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term>Anycast</term>
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<listitem>
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<para>These addresses are syntactically indistinguishable from
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unicast addresses but they address a group of interfaces. The
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packet destined for an anycast address will arrive at the
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nearest router interface. Anycast addresses are
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only used by routers.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term>Anycast</term>
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<listitem>
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<para>These addresses are syntactically indistinguishable
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from unicast addresses but they address a group of
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interfaces. The packet destined for an anycast address
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will arrive at the nearest router interface. Anycast
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addresses are only used by routers.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term>Multicast</term>
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<listitem>
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<para>These addresses identify a group of interfaces. A
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packet destined for a multicast address will arrive at all
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interfaces belonging to the multicast group. The
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<acronym>IPv4</acronym> broadcast address, usually
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<systemitem class="ipaddress">xxx.xxx.xxx.255</systemitem>,
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is expressed by multicast addresses in
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<acronym>IPv6</acronym>.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term>Multicast</term>
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<listitem>
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<para>These addresses identify a group of interfaces. A
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packet destined for a multicast address will arrive at
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all interfaces belonging to the multicast group. The
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<acronym>IPv4</acronym> broadcast address, usually
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<systemitem
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class="ipaddress">xxx.xxx.xxx.255</systemitem>, is
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expressed by multicast addresses in
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<acronym>IPv6</acronym>.</para>
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</listitem>
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</varlistentry>
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</variablelist>
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<para>When reading an <acronym>IPv6</acronym> address, the canonical form is represented as
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<para>When reading an <acronym>IPv6</acronym> address, the
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canonical form is represented as
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<systemitem>x:x:x:x:x:x:x:x</systemitem>, where each
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<literal>x</literal> represents a 16 bit hex value. An example is
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<literal>x</literal> represents a 16 bit hex value. An
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example is
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<systemitem>FEBC:A574:382B:23C1:AA49:4592:4EFE:9982</systemitem>.</para>
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<para>Often, an address will have long substrings of all zeros.
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A <literal>::</literal> (double colon) can be used to replace
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one substring per address. Also, up to three leading
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<literal>0</literal>s per hex value can be omitted. For example,
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<systemitem>fe80::1</systemitem> corresponds to the
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<literal>0</literal>s per hex value can be omitted. For
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example, <systemitem>fe80::1</systemitem> corresponds to the
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canonical form
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<systemitem>fe80:0000:0000:0000:0000:0000:0000:0001</systemitem>.</para>
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<para>A third form is to write the last 32 bits using the
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well known <acronym>IPv4</acronym> notation. For example,
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<para>A third form is to write the last 32 bits using the well
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known <acronym>IPv4</acronym> notation. For example,
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<systemitem>2002::10.0.0.1</systemitem> corresponds to the
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hexadecimal canonical representation
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<systemitem>2002:0000:0000:0000:0000:0000:0a00:0001</systemitem>,
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@ -4393,13 +4396,14 @@ Received 264951 bytes in 0.1 seconds</screen>
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media: Ethernet autoselect (100baseTX )
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status: active</programlisting>
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<para>In this example, <systemitem>fe80::200:21ff:fe03:8e1%rl0</systemitem> is an
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auto-configured link-local address which was automatically generated from
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the <acronym>MAC</acronym> address.</para>
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<para>In this example,
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<systemitem>fe80::200:21ff:fe03:8e1%rl0</systemitem> is an
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auto-configured link-local address which was automatically
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generated from the <acronym>MAC</acronym> address.</para>
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<para>Some <acronym>IPv6</acronym> addresses are reserved. A
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summary of these reserved addresses is seen in
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<xref linkend="reservedip6"/>:</para>
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summary of these reserved addresses is seen in <xref
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linkend="reservedip6"/>:</para>
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<table xml:id="reservedip6" frame="none">
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<title>Reserved <acronym>IPv6</acronym> Addresses</title>
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@ -4496,44 +4500,44 @@ Received 264951 bytes in 0.1 seconds</screen>
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<sect2>
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<title>Configuring <acronym>IPv6</acronym></title>
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<para>To configure a &os; system as an
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<acronym>IPv6</acronym> client, add these two lines to
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<filename>rc.conf</filename>:</para>
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<para>To configure a &os; system as an <acronym>IPv6</acronym>
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client, add these two lines to
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<filename>rc.conf</filename>:</para>
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<programlisting>ifconfig_<replaceable>em0</replaceable>_ipv6="inet6 accept_rtadv"
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<programlisting>ifconfig_<replaceable>em0</replaceable>_ipv6="inet6 accept_rtadv"
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rtsold_enable="YES"</programlisting>
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<para>The first line enables the specified interface to receive
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router solicitation messages. The second line enables the
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router solicitation daemon, &man.rtsol.8;.</para>
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<para>The first line enables the specified interface to receive
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router solicitation messages. The second line enables the
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router solicitation daemon, &man.rtsol.8;.</para>
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<para>For &os; 8.<replaceable>x</replaceable>,
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add a third line:</para>
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<para>For &os; 8.<replaceable>x</replaceable>, add a third
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line:</para>
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<programlisting>ipv6_enable="YES"</programlisting>
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<programlisting>ipv6_enable="YES"</programlisting>
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<para>If the interface needs a statically assigned <acronym>IPv6</acronym>
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address, add an entry to specify the static address and
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associated prefix length:</para>
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<para>If the interface needs a statically assigned
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<acronym>IPv6</acronym> address, add an entry to specify the
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static address and associated prefix length:</para>
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<programlisting>ifconfig_<replaceable>fxp0</replaceable>_ipv6="inet6 <replaceable>2001:db8:4672:6565:2026:5043:2d42:5344</replaceable> prefixlen <replaceable>64</replaceable>"</programlisting>
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<programlisting>ifconfig_<replaceable>fxp0</replaceable>_ipv6="inet6 <replaceable>2001:db8:4672:6565:2026:5043:2d42:5344</replaceable> prefixlen <replaceable>64</replaceable>"</programlisting>
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<para>On a &os; 8.<replaceable>x</replaceable> system,
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that line uses this format instead:</para>
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<para>On a &os; 8.<replaceable>x</replaceable> system, that
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line uses this format instead:</para>
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<programlisting>ipv6_ifconfig_<replaceable>fxp0</replaceable>="<replaceable>2001:db8:4672:6565:2026:5043:2d42:5344</replaceable>"</programlisting>
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<programlisting>ipv6_ifconfig_<replaceable>fxp0</replaceable>="<replaceable>2001:db8:4672:6565:2026:5043:2d42:5344</replaceable>"</programlisting>
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<para>To assign a default router, specify its address:</para>
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<para>To assign a default router, specify its address:</para>
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<programlisting>ipv6_defaultrouter="<replaceable>2001:db8:4672:6565::1</replaceable>"</programlisting>
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</sect2>
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<programlisting>ipv6_defaultrouter="<replaceable>2001:db8:4672:6565::1</replaceable>"</programlisting>
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</sect2>
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<sect2>
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<title>Connecting to a Provider</title>
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<sect2>
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<title>Connecting to a Provider</title>
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<para>In order to connect to other
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<acronym>IPv6</acronym> networks, one must have a
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provider or a tunnel that supports <acronym>IPv6</acronym>:</para>
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<para>In order to connect to other <acronym>IPv6</acronym>
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networks, one must have a provider or a tunnel that supports
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<acronym>IPv6</acronym>:</para>
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<itemizedlist>
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<listitem>
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@ -4556,55 +4560,55 @@ rtsold_enable="YES"</programlisting>
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</itemizedlist>
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<note>
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<para>Install the <package>net/freenet6</package> package or port for a
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dial-up connection.</para>
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</note>
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<para>Install the <package>net/freenet6</package> package or
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port for a dial-up connection.</para>
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</note>
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<para>This section demonstrates how to take the directions
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from a tunnel provider and convert them into
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<filename>/etc/rc.conf</filename> settings that
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will persist through reboots.</para>
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<para>This section demonstrates how to take the directions from
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a tunnel provider and convert them into
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<filename>/etc/rc.conf</filename> settings that will persist
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through reboots.</para>
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<para>The first <filename>/etc/rc.conf</filename> entry
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creates the generic tunneling interface
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<filename>gif0</filename>:</para>
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<para>The first <filename>/etc/rc.conf</filename> entry creates
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the generic tunneling interface
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<filename>gif0</filename>:</para>
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<programlisting>gif_interfaces="gif<replaceable>0</replaceable>"</programlisting>
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<programlisting>gif_interfaces="gif<replaceable>0</replaceable>"</programlisting>
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<para>Next, configure that interface with the
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<acronym>IPv4</acronym> addresses of the local and remote endpoints. Replace
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<replaceable>MY_IPv4_ADDR</replaceable> and
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<replaceable>REMOTE_IPv4_ADDR</replaceable> with the actual
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<acronym>IPv4</acronym> addresses:</para>
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<para>Next, configure that interface with the
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<acronym>IPv4</acronym> addresses of the local and remote
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endpoints. Replace <replaceable>MY_IPv4_ADDR</replaceable>
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and <replaceable>REMOTE_IPv4_ADDR</replaceable> with the
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actual <acronym>IPv4</acronym> addresses:</para>
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<programlisting>gifconfig_gif0="<replaceable>MY_IPv4_ADDR REMOTE_IPv4_ADDR</replaceable>"</programlisting>
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<programlisting>gifconfig_gif0="<replaceable>MY_IPv4_ADDR REMOTE_IPv4_ADDR</replaceable>"</programlisting>
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<para>To apply the <acronym>IPv6</acronym> address that has
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been assigned for use as the <acronym>IPv6</acronym> tunnel
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endpoint, add this line, replacing
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<replaceable>MY_ASSIGNED_IPv6_TUNNEL_ENDPOINT_ADDR</replaceable>
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with the assigned address:</para>
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<para>To apply the <acronym>IPv6</acronym> address that has been
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assigned for use as the <acronym>IPv6</acronym> tunnel
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endpoint, add this line, replacing
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<replaceable>MY_ASSIGNED_IPv6_TUNNEL_ENDPOINT_ADDR</replaceable>
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with the assigned address:</para>
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<programlisting>ifconfig_gif0_ipv6="inet6 <replaceable>MY_ASSIGNED_IPv6_TUNNEL_ENDPOINT_ADDR</replaceable>"</programlisting>
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<programlisting>ifconfig_gif0_ipv6="inet6 <replaceable>MY_ASSIGNED_IPv6_TUNNEL_ENDPOINT_ADDR</replaceable>"</programlisting>
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<para>For &os; 8.<replaceable>x</replaceable>,
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that line should instead use this format:</para>
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<para>For &os; 8.<replaceable>x</replaceable>, that line
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should instead use this format:</para>
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<programlisting>ipv6_ifconfig_gif0="<replaceable>MY_ASSIGNED_IPv6_TUNNEL_ENDPOINT_ADDR</replaceable>"</programlisting>
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<programlisting>ipv6_ifconfig_gif0="<replaceable>MY_ASSIGNED_IPv6_TUNNEL_ENDPOINT_ADDR</replaceable>"</programlisting>
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<para>Then, set the default route for
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the other side of the
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<acronym>IPv6</acronym> tunnel. Replace
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<replaceable>MY_IPv6_REMOTE_TUNNEL_ENDPOINT_ADDR</replaceable>
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with the default gateway address assigned by the provider:</para>
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<para>Then, set the default route for the other side of the
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<acronym>IPv6</acronym> tunnel. Replace
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<replaceable>MY_IPv6_REMOTE_TUNNEL_ENDPOINT_ADDR</replaceable>
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with the default gateway address assigned by the
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provider:</para>
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<programlisting>ipv6_defaultrouter="<replaceable>MY_IPv6_REMOTE_TUNNEL_ENDPOINT_ADDR</replaceable>"</programlisting>
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<programlisting>ipv6_defaultrouter="<replaceable>MY_IPv6_REMOTE_TUNNEL_ENDPOINT_ADDR</replaceable>"</programlisting>
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<para>If the &os; system will route <acronym>IPv6</acronym>
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packets between the rest of the network and the world, enable
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the gateway using this line:</para>
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<para>If the &os; system will route <acronym>IPv6</acronym>
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packets between the rest of the network and the world, enable
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the gateway using this line:</para>
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<programlisting>ipv6_gateway_enable="YES"</programlisting>
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<programlisting>ipv6_gateway_enable="YES"</programlisting>
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</sect2>
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<sect2>
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Loading…
Reference in a new issue